Question

7. You are told that 1,331 is a perfect cube. Can you guess without
factorization what its cube root is? Similarly, guess the cube roots of
4913, 12167, 32768.​

Answer 1

Answer:

Step-by-step explanation:

1 - 3 + 3 - 1 = 0, thus 1331 is divisible by 11 and since we know that 1331 is a perfect cube, then 1331 = 11³.

4913 is divisible by 17 and since it is a perfect cube, then 4913 = 17³

12167 is divisible by 23and since it is a perfect cube, then 12167 =23³

32768 is divisible by 32and since it is a perfect cube, then 32768 = 32³

Answer 2

Answer:

U can guess only the last digit of the cube.

Further u have to think.